Title:
LANGUAGE MODEL CREATION DEVICE, LANGUAGE MODEL CREATION METHOD, VOICE RECOGNITION DEVICE, VOICE RECOGNITION METHOD, PROGRAM, AND STORAGE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2010/021368
Kind Code:
A1
Abstract:
A frequency counter (15A) counts within input text data (14A) the appearance frequency (14B) of each of various words and phrases contained in input text data (14A), a context variability computer (15B) calculates a variability index (14C), which indicates the variability of the context of the words or phrases, for each of the words and phrases, a frequency compensator (15C) corrects the appearance frequencies (14B) of the words and phrases based on the variability indexes (14C) of the words and phrases, and an N-gram language model generator (15D) creates an N-gram language model (14E) based on the corrected appearance frequency (14D) obtained for each of the words or phrases.
Inventors:
TERAO,Makoto (7-1Shiba 5-chome,Minato-k, Tokyo 01, 〒1088001, JP)
寺尾 真 (〒01 東京都港区芝五丁目７番１号 日本電気株式会社内 Tokyo, 〒1088001, JP)
MIKI,Kiyokazu (7-1Shiba 5-chome,Minato-k, Tokyo 01, 〒1088001, JP)
寺尾 真 (〒01 東京都港区芝五丁目７番１号 日本電気株式会社内 Tokyo, 〒1088001, JP)
MIKI,Kiyokazu (7-1Shiba 5-chome,Minato-k, Tokyo 01, 〒1088001, JP)
Application Number:
JP2009/064596
Publication Date:
February 25, 2010
Filing Date:
August 20, 2009
Export Citation:
Assignee:
NEC CORPORATION (7-1Shiba 5-chome, Minato-ku Tokyo, 01, 〒1088001, JP)
日本電気株式会社 (〒01 東京都港区芝五丁目７番１号 Tokyo, 〒1088001, JP)
TERAO,Makoto (7-1Shiba 5-chome,Minato-k, Tokyo 01, 〒1088001, JP)
寺尾 真 (〒01 東京都港区芝五丁目７番１号 日本電気株式会社内 Tokyo, 〒1088001, JP)
日本電気株式会社 (〒01 東京都港区芝五丁目７番１号 Tokyo, 〒1088001, JP)
TERAO,Makoto (7-1Shiba 5-chome,Minato-k, Tokyo 01, 〒1088001, JP)
寺尾 真 (〒01 東京都港区芝五丁目７番１号 日本電気株式会社内 Tokyo, 〒1088001, JP)
International Classes:
G10L15/18; G06F17/21; G06F17/28
Attorney, Agent or Firm:
YAMAKAWA,Masaki et al. (4th FloorSanno Park Tower,11-1,Nagatacho 2-chome,Chiyoda-k, Tokyo 04, 〒1006104, JP)
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